Andrey Breslav
76 lines
1.7 KiB
Kotlin
76 lines
1.7 KiB
Kotlin
class AssertionChecker(val illegalStateExpected: Boolean) {
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fun invoke(name: String, f: () -> Any) {
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try {
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f()
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} catch (e: IllegalStateException) {
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if (!illegalStateExpected) throw AssertionError("Unexpected IllegalStateException on calling $name")
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return
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}
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if (illegalStateExpected) throw AssertionError("IllegalStateException expected on calling $name")
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}
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}
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trait Tr {
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fun foo(): String
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}
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class Derived : A(), Tr {
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override fun foo() = super<A>.foo()
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}
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class Delegated : Tr by Derived() {
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}
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fun checkAssertions(illegalStateExpected: Boolean) {
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val check = AssertionChecker(illegalStateExpected)
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// simple call
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check("foo") { A().foo() }
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// simple static call
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check("staticFoo") { A.staticFoo() }
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// supercall
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check("foo") { Derived().foo() }
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// delegated call
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check("foo") { Delegated().foo() }
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// collection element
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check("get") { A()[""] }
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// binary expression
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check("plus") { A() + A() }
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// field
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check("NULL") { A().NULL }
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// static field
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check("STATIC_NULL") { A.STATIC_NULL }
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// postfix expression
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// TODO:
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// check("inc") { var a = A().a(); a++ }
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// prefix expression
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check("inc-b") { var a = A.B.b(); a++ }
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// prefix expression
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check("inc-c") { var a = A.C.c(); a++ }
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// prefix expression
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check("inc") { var a = A().a(); ++a }
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// prefix expression
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check("inc-b") { var a = A.B.b(); ++a }
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// prefix expression
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// TODO:
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// check("inc-c") { var a = A.C.c(); ++a }
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}
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fun A.C.inc(): A.C = A.C()
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fun <T> T.inc(): T = null as T
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